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Related papers: Log motivic Gysin isomorphisms

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The purpose of this note is to extend Dynkin's isomorphim involving functionals of the occupation field of a symmetric Markov processes and of the associated Gaussian field to a suitable class of non symmetric Markov processes.

Probability · Mathematics 2007-07-26 Yves Le Jan

We construct a theory of motivic integration for smooth rigid varieties. As an application new invariants of degenerations are obtained.

Algebraic Geometry · Mathematics 2007-12-06 F. Loeser , J. Sebag

In this note we will illustrate a method for computing the $\pi_0$ of the effective log motive of a smooth and proper variety over a perfect field $k$ and show that it is $\mathbf{A}^1$-invariant. We will apply this to compute the first…

Algebraic Geometry · Mathematics 2026-03-12 Alberto Merici

The goal of this paper is to extend the work of Voevodsky and Morel on the homotopy $t$-structure on the category of motivic complexes to the context of motives for logarithmic schemes. To do so, we prove an analogue of Morel's connectivity…

Algebraic Geometry · Mathematics 2022-01-25 Federico Binda , Alberto Merici

We present a method to compute the group of affine transformations of a homogeneous $G$-space under specific conditions: when the group $G$ and the homogeneous $G$-space admit linear connections so that the natural projection is affine, and…

Differential Geometry · Mathematics 2025-06-10 O. Saldarriaga , A. Flórez

Let $k$ be a perfect field of characteristic $p>0$, and $S$ an scheme over $k$. An $F$-zip is basically a locally free $O_S$-module of finite rank endowed with two filtration and an Frobenius-linear isomorphism between their graded pieces.…

Algebraic Geometry · Mathematics 2014-05-15 Yaroslav Yatsyshyn

We prove semi-rationalification and semi-log-canonicalization for Gorenstein demi-normal surfaces. That is, given a Gorenstein demi-normal surface X with semi-rational (respectively, semi-log canonical) singularities in an open set U with…

Algebraic Geometry · Mathematics 2016-06-15 Jeremy Berquist

We present a new relation between an invariant of singularities in characteristic zero (the log canonical threshold) and an invariant of singularities defined via the Frobenius morphism in positive characteristic (the F-pure threshold). We…

Algebraic Geometry · Mathematics 2011-06-02 Bhargav Bhatt , Daniel J. Hernandez , Lance E. Miller , Mircea Mustata

Let (S, B) be the log pair associated with a projective completion of a smooth quasi-projective surface V . Under the assumption that the boundary B is irreducible, we obtain an algorithm to factorize any automorphism of V into a sequence…

Algebraic Geometry · Mathematics 2016-10-25 Adrien Dubouloz , Stéphane Lamy

The subject of this dissertation is the Gysin homomorphism in equivariant cohomology for spaces with torus action. We consider spaces which are quotients of classical semisimple complex linear algebraic groups by a parabolic subgroup with…

Algebraic Geometry · Mathematics 2017-02-15 Magdalena Zielenkiewicz

We consider slice filtrations in logarithmic motivic homotopy theory. Our main results establish conjectured compatibilities with the Beilinson, BMS, and HKR filtrations on (topological, log) Hochschild homology and related invariants. In…

Algebraic Geometry · Mathematics 2025-08-20 Federico Binda , Doosung Park , Paul Arne Østvær

In this article, we consider the conjectured relationship between F-purity and log canonicity for polynomials over the complex numbers. We associate to a collection M of n monomials a rational polytope P contained in [0,1]^n. Using P and…

Commutative Algebra · Mathematics 2011-12-13 Daniel J. Hernández

We characterise mutations between fake weighted projective spaces, and give explicit formulas for how the weights and multiplicity change under mutation. In particular, we prove that multiplicity-preserving mutations between fake weighted…

Algebraic Geometry · Mathematics 2022-09-22 Tom Coates , Samuel Gonshaw , Alexander Kasprzyk , Navid Nabijou

We introduce a theory of motivic cohomology for quasi-compact quasi-separated schemes, which generalises the construction of Elmanto--Morrow in the case of schemes over a field. Our construction is non-$\mathbb{A}^1$-invariant in general,…

Algebraic Geometry · Mathematics 2025-07-22 Tess Bouis

We study the construction and properties of the Gysin triangle in an axiomatic framework which covers triangulated mixed motives and MGl-modules over an arbitrary base S. This allows to define the Gysin morphism associated to a projective…

Algebraic Geometry · Mathematics 2008-11-08 F. Déglise

We investigate the asympotic behaviour of the moduli space of morphisms from the rational curve to a given variety when the degree becomes large. One of the crucial tools is the homogeneous coordinate ring of the variey. First we explain in…

Algebraic Geometry · Mathematics 2011-07-20 David Bourqui

We study transformational program logics for correctness and incorrectness that we extend to explicitly handle both termination and nontermination. We show that the logics are abstract interpretations of the right image transformer for a…

Logic in Computer Science · Computer Science 2023-11-27 Patrick Cousot

In this paper we prove that a pure, regular, totally odd, polarizable weakly compatible system of $l$-adic representations is potentially automorphic. The innovation is that we make no irreducibility assumption, but we make a purity…

Number Theory · Mathematics 2019-02-20 Stefan Patrikis , Richard Taylor

We are interested in easy geometric transformations which regularize n-polygons in the non-euclidean plane. A transformation is called easy if it can be easily implemented into an algorithm. This article is motivated by preceding work on…

Metric Geometry · Mathematics 2013-12-10 Dimitris Vartziotis , Doris Bohnet

We give a sufficient condition under which the moduli space of morphisms between logarithmic schemes is quasifinite under the moduli space of morphisms between the underlying schemes. This implies that the moduli space of stable maps from…

Algebraic Geometry · Mathematics 2016-01-13 Jonathan Wise